Support all standard text encodings in TextDecoder

src/bun.js/bindings/webcore/WebkitTextCodec.cpp

@@ -0,0 +1,48 @@
+#include "root.h"
+
+#include "TextCodec.h"
+#include "TextEncodingRegistry.h"
+#include "TextEncoding.h"
+#include "headers-handwritten.h"
+namespace Bun {
+
+using namespace PAL;
+using namespace WTF;
+
+class WebKitTextCodec {
+    WTF_MAKE_FAST_ALLOCATED;
+
+public:
+    std::unique_ptr<TextCodec> codec;
+
+    static WebKitTextCodec* create(std::span<const LChar> encodingLabel)
+    {
+        return new WebKitTextCodec(newTextCodec(TextEncoding(StringView(encodingLabel))));
+    }
+};
+
+extern "C" WebKitTextCodec* WebKitTextCodec__create(const LChar* ptr, size_t len)
+{
+
+    auto label = std::span<const LChar>(ptr, len);
+    return WebKitTextCodec::create(label);
+}
+
+extern "C" void WebKitTextCodec__deinit(WebKitTextCodec* codec)
+{
+    delete codec;
+}
+
+extern "C" BunString WebKitTextCodec__decode(WebKitTextCodec* code, const uint8_t* input_ptr, size_t input_len, bool flush, bool* stopOnError)
+{
+    const std::span<const uint8_t> data = { input_ptr, input_len };
+    auto str = code->codec->decode(data, flush, stopOnError, *stopOnError);
+    return Bun::toStringRef(str);
+}
+
+extern "C" void WebKitTextCodec__stripByteOrderMark(WebKitTextCodec* code)
+{
+    code->codec->stripByteOrderMark();
+}
+
+}